Heather Longval, M.D.
NPI 1831147818 · Family Medicine Physician · Sioux City, IA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Heather Longval, M.D. is a Family Medicine Physician provider in Sioux City, IA (NPI 1831147818).
Provider details
- NPI number
- 1831147818
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 34717 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
6,568 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 837 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 789 | $118 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 584 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 573 | $8 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 340 | $13 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 301 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 134 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 840 | 235 |
| Levothyroxine Sodium | 751 | 171 |
| Amlodipine Besylate | 376 | 111 |
| Omeprazole | 324 | 97 |
| Losartan Potassium | 274 | 75 |
| Hydrochlorothiazide | 228 | 65 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$497 across 33 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-04
- Last updated
- 2026-02-27
- Certified
- 2026-02-27
Frequently asked questions
- What is Heather Longval's NPI number?
- Heather Longval's National Provider Identifier (NPI) is 1831147818, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Heather Longval's specialty?
- Heather Longval is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Heather Longval located?
- Heather Longval's practice location on file with NPPES is 4545 Sergeant Rd, Sioux City, IA 51106-4706.
- What is Heather Longval's phone number?
- The practice phone number listed in the NPPES registry for Heather Longval is (712) 274-2400.
- Does Heather Longval accept Medicare?
- Heather Longval is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Heather Longval's NPI active?
- Yes — Heather Longval's NPI (1831147818) is active in the NPPES registry as of the last update on 2026-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.